I too wondered about how switching away from Windows would impact my access to games. My earliest memories are about games. My entire childhood was spent playing games, to the detriment of any other activity. My first non-burger-flipping job was in the gaming industry. Games are constantly on my mind. I love video games. But today, in practice, I don't miss any Windows-only games.

The first observation is that we're in a golden age of video gaming. There are so many quality games coming out, for every platform, that you could spend the rest of your life playing only the games available today and barely even make a dent in the backlog. The world has too many games as it is (which isn't a bad thing, to be clear).

The second observation is that, even though there are so many objectively high-quality games, I've become bored of almost all of them. Almost none of them have anything new to offer, and are, at best, refinements on existing formulas. Now that I'm older, I've seen all the formulas. For younger people, maybe they would suffer from not getting to have some formative experience in some Windows-only game. But I've put in my 10,000 hours, twice over, making me an expert in video games, and in my expert opinion I'm not missing out.